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GeGe Group Title

Paul deposited $6,460 into a savings account 17 years ago. The account has an interest rate of 4.3% and the balance is currently $13,400.91. How often does the interest compound?

  • one year ago
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  1. RaphaelFilgueiras Group Title
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    |dw:1344979320231:dw|

    • one year ago
  2. RaphaelFilgueiras Group Title
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    the interest is in one year,month?

    • one year ago
  3. telliott99 Group Title
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    The basic formula is \[A = P(1 + \frac{r}{n})^{nt}\] The n is there if the interest is compounded n times per year, but let us assume that it is not---the interest is compounded annually. OK?

    • one year ago
  4. telliott99 Group Title
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    Scratch the assumption. we have \[13400.91 = 6460(1 + \frac{0.043}{n})^{17n}\]

    • one year ago
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